EXCLUSIVE: Rocket Pictures is re-teaming with Gnomeo & Juliet writer/director Kelly Asbury on Will Gallows and the Snake Bellied Troll, a live-action/CGI-animated feature. Based on the first in a series of books by Derek Keilty, the film tells the story of a young cowboy who seeks justice in a world that mashes together fantasy and the Wild West. Andersen Press published the book last March. Rocket Pictures, which is Sir Elton John’s label formed to make family-themed film and TV projects, acquired the feature rights for a film that, like Gnomeo & Juliet, will have strong musical elements. Rocket Pictures’ Steve Hamilton Shaw and David Furnish will produce, and John will be executive producer.

“It’s a classic cowboy story for kids, set in an amazing world,” John said in a statement. “We think family audiences will love it.” Rocket and Asbury scored a sleeper hit with Gnomeo & Juliet, with James McAvoy and Emily Blunt the lead voices, and new songs by John. The film grossed just shy of $100 million domestically for Disney, and its worldwide gross was just over $190 million. Asbury co-directed with Andrew Adamson Shrek 2 and he also directed Spirit: Stallion of the Cimarron, both for DreamWorks. Both he and Rocket Pictures are repped by UTA.